One recommendation, which is completely obvious but still practiced by many small market merchants, is to remove ads from sites or pages which are set up to sell a product:

If you’re trying to get people to buy a product or a service and you’re running Adsense or another ad system on your site you may be making a big mistake. These ads provide exit points for your traffic (and potential customers). Keep your customers focused on the task at hand. If they leave the site through an ad, “Great you made $.25,

Deepak Gupta is a IT & Web Consultant. He is the founder and CEO of diTii.com & DIT Technologies, where he's engaged in providing Technology Consultancy, Design and Development of Desktop, Web and Mobile applications using various tools and softwares. Sign-up for the Email for daily updates. Google+ Profile.